#-*- coding: utf-8 -*-
# Create your views here.
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render, get_object_or_404
from django.core.urlresolvers import reverse

from polls.models import Poll, Choice

def index (request):
    latest_poll_list = Poll.objects.order_by('-pub_date')[:5]
    context = {'latest_poll_list': latest_poll_list}
    return render(request, 'polls/index.html', context)

def detail (request, poll_id):
    poll = get_object_or_404(Poll, pk=poll_id)
    return render(request, 'polls/detail.html', {'poll': poll})

def results(request, poll_id):
    return HttpResponse("You're looking at the results of poll %s." % poll_id)

def vote(request, poll_id):
    p = get_object_or_404(Poll, pk=poll_id)
    try:
        selected_choice = p.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        #Redisplay the poll voting form.
        return render(request, 'polls/detail.html', {
                'poll':p,
                'error_message': "You didn't select a choice.",
                })
    else:
        selected_choice.votes += 1
        selected_choice.save()
        #Always return an HttpResponseRedirect after successfully dealing
        #with POST data. This prevents data from being posted twice if a
        #user hits the Back button.
        return HttpResponseRedirect(reverse('polls:results', args=(p.id,)))
        
    return HttpResponse("You're voting on poll %s." % poll_id)
